Commentary for Numbers 7:19

קערת כסף — The numerical value of its letters (of the letters of these two words) is 930 corresponding to the years of Adam ha-Rishon (Numbers Rabbah 14:12).

הקריב את קרבנו, brought his offering, etc. These words are superfluous, seeing the Torah already wrote in verse 18 that Netanel brought an offering. The Torah may have intended to stress its regard for Nachshon's offering. The Torah did this by mentioning the fact that Nachshon brought his offering three times. It mentions Netanel as having brought his offering twice, and mentions all the other princes only once as having brought their respective offerings. They were not on the spiritual levels of either the kings of Yehudah or the tribe of Issachar [in the future Ed.].

930 corresponding to the years. Rashi brings these allusions in order to relate to the simple understanding of the verses. For if this were not so, what is the relevance detailing these utensils by their number and weight, and similarly in detailing the animals teaching that all the leaders agreed to them, neither subtracting or adding? This is even though it is not the manner of Rashi to bring interpretations such as this (Re’m). (Gur Aryeh) Rashi brought these numerical values here upon the offerings of Nesanel the son of Tzu’ar because he gave this advice and if there had not been an important symbolism with wisdom and appropriate reasoning they would not have listened to him, also they would not have needed this advice. You might ask: How are the ages of Adam and Noach relevant here? The answer is that the Mishkon was representative of the creation of the world, as is brought in Shemos Rabbah, Parshas Pekudei. Therefore their offerings were related to all of the foundations of the world — Adam, Noach and the seventy nations, the Torah, the Ten Commandments and the fathers of the world upon whom the world stands.